wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. All tip submissions are carefully reviewed before being published. By working the rake in the lock, you should feel the key pin reach the shear line (where the teeth would push them to) Twist the tension wrench in the correct direction, and the lock should spring open! Again, this technique is intrusive and can cause damage to the vehicle. Don’t The one number that does not fit the pattern is the final number in your combination. Can I open a master lock speed dial, and set my own combination with any of these methods? Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. To replace a defective lock or retrieve your items, you have to gain access to the glove box. Archived. What if it locks on a number that when you add 5 it goes over 40? {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/80\/Open-Combination-Locks-Without-a-Code-Step-1-Version-7.jpg\/v4-460px-Open-Combination-Locks-Without-a-Code-Step-1-Version-7.jpg","bigUrl":"\/images\/thumb\/8\/80\/Open-Combination-Locks-Without-a-Code-Step-1-Version-7.jpg\/aid871678-v4-640px-Open-Combination-Locks-Without-a-Code-Step-1-Version-7.jpg","smallWidth":460,"smallHeight":403,"bigWidth":640,"bigHeight":560,"licensing":"